Portable oven for gas and vapor stoves



2 Sheets-Sheet 1.

'(ModeL).

J .L.MORGA N.

PORTABLE OVEN FOR GAS AND VAPOR STOVES. No. 258,101.

Patnted May 16, 1882.

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N. PETERS. PhntoLx'llwgn-lphe". Washinglon. n. c.

' i 2 Sheath-Sheet 2. J. L. MORGAN. r PORTABLE OVEN FOR GAS AND VAPORSTOVES.

(Modem No. 258,101. Patented May 16, 1882.

N4 PEIERS. Phclo-hlhagnplmr. Washington. at;

UNiTED. STATES PATENT OFFICE.

JONATHAN L. MORGAN, OF DECATUR, ILLI NOIS.

PORTABLE O VEN FOR GAS AND VA POR STOVES.

SPECIFICATION formingpart of Letters Patent No. 258,101, dated May 16,1882.

' Application filed July 30,1881. (Model) To all whom it may concern Beit known that I, JONATHAN L. MORGAN, a citizen of the United States,residing at Decatur, in the county of Macon and State. of Illinois, haveinvented a new and useful Improvenient in Portable Ovens for Gas and Va-Ypor Stoves, of which the following is a specification.

My invention relates to certain new and useful improvements in portableovens for gas and vapor stoves; and it consists, first, in theconstructionof the grate; second, in the construction of the door-front;third, in the corrugated radiating-disk suspended over the flame bywires attached to the bottomof said oven; and, fourth, in the use of anair-chamber at the top, inside, having conducting-tubes secured to theside walls to convey the air and smoke thereto, as hereinafter morefullydescribed. I attain these objects by the device illustrated in theaccompanying drawings, in

which- Figure 1 is a longitudinal vertical section on the line as a,Fig. 2, and shows the entire interior construction. Fig. 2 is atransverse vertical section, showing the grates in proper posiiion. Fig.3 is a view of a portion of the bottom of the oven, showing the circularcorrugated radiating disk suspended on wires stretched across theopening in the bottom of oven. Fig. 4 represents the oven in perspective, the drip-pan being removed and the body broken out in places toshow the flame-spreader or corrugated disk, the conducting-tubes, andthe brackets attached to them which support the grates or shelves. Fig.5 is a plan of the grate or shelf, bottom side up. Fig. 6 is an end viewof grate, also bottom side up.

Similar letters refer to similar parts throughout the several views.

A represents the body of the oven, and is made of one continuous sheetof tin or other metal, with but the one seam. The edges are bent atright angles, and the corners riveted together, as shown at B, thus.dispensing with the strips commonly used to form the inside rim at thatend to which the door is attached, the opposite end being covered in theusual manner as heretofore,

O is the air-chamber at the top of the oven,

and is provided with the conducting-tubes D D, having their openings attheir lower ends, asindicated by arrows, and an outlet into the top, asit is obvious that these conductingtubes may be made either way-that is,either with the half-circle at the top, when the tube is set so that theupper end rests against the upper part of the oven, or, when made squareon top and set, as in Fig. 4, a short distance from thetop, so that thehot air can pass out at the top into the chamber, and thence out throughthe orifice in the top of the oven, which is covered by the damper H.Onto these tubes are riveted the brackets which support the grates. Theconducting-tubes D,being the same width as the inside flanges, allowthe'grates to be removed from the oven parallel. The advantage of thisis apparent, as the articles need not be removed from the grate untilafter withdrawing itfrom the oven.

E is a drip-pan and sub-radiator, and is supported on legs or angle-irons b b b b at its corners.

F is the corrugated radiating-disk, and is suspended on wires or a a a,which pass across the hole in the bottom of the oven, said wires beinghooked into and bent down tight onto the metal bottom of the oven, andacting as braces to strengthen the bottom as well as to hold theradiator in position. By reference to Fig. 3 it will be seen that thewires pass under and over the disk through the corrugations formed forthe purpose,and that side havingthe longest convex form is presented tothe flame, thereby protecting the wires to a great extent. It is obviousthe corrugations, as well as the wires, serve to prevent the radiatorfrom working by the action of the flame.

I do not wish to confine myself to the circular form of disk, nor thenumber of wires shown, as it is obvious that a different form may beapplied to the disk, and any number of wires may be used to suspend itinposition.

G is the grate, made of sheet-iron and constructed as follows: One edgeof the side bars, 0 c, is folded over, and the ends of the crossbars 0 cc are placed under or in between these folds and hammered down. It isthen placed in a tinners folding-machine and bent at right angles, asrepresented in Fig. 6. The

cross-bars at each end of the grate are placed I tubes and the tubesbeing of thesame depth 3 5 even with the end of the side bars, and arivet is inserted through them to prevent lateral displacement of thetwo only, while the others are firmlyheld in place by-the formation ofthe grate, as before described. The grate thus formed rests on thebrackets, as shown, with the edges downward.

The upper left-hand corner of Fig. 2 is broken out to show the extent ofthe partition which forms the air-chamber C, and also a section of theconducting-tube D. The partition is attached to the oven at the sideswith rivets, which pass through theflanges, as shown at f ff, Fig. 1,the ends being turned up at right anglesrto fit the inside of the ovenat g g, Fig.1.

The top of the oven is provided with a sliding damper or valve, H,toregulate. the heat and allow the smoke and vapor arising from thearticles being baked .to escape.

Having thusdescribedmy invention, what I claim, and desire to. secure byLetters Patent, 1s-

1. In a portable oven for vapor and gas stoves, the radiator or disk,corrugated to prevent warping as well as to allow the wires to passthrough it fiatwise, and the wires forthe purpose of suspending the diskin its position above the flame-,substantially as. shown and described.

2. In aportable oven, the conducting-tubes D, seouredvto the, side wallsof the oven at equal distancesfrom .the endsthereof, the side walls oftheoven forming one side .of the oven, substantially as described, theoverlapping corners ofsaid turned-down portions being secured togetherby rivets.

5. In a portable oven for vapor and gas stoves, the combination of thefollowing elements, viz: the corrugated radiating-disk F and bottompartof the oven and thesu-b-radiator or drip-pan E, the conducting-tubesD, and air-chamber 0, having the valve or damper H, the brackets d d,and grate G, all arranged substantially as herein shown and described.

6. A sheet-metal shelf or grate having two side bars and a number ofcross-bars, the side bars being bent longitudinally and embracing andoverlapping the cross-,bars, which are bent transversely at theirextremities, and'the cross-bars at each end being secured to the sidebars by rivets,substantially as described.

JONATHAN L. MORGAN.

- \Vitnesses:

H. W. WAGGONER, v JOHN SKELLEY.

